Generation, Detection, and Manipulation of Light with Ultrahigh-Conductivity Carbon-Nanotube Fibers

Simple item page
dc.contributor.advisorKono, Junichiro
dc.creatorZubair, Ahmed
dc.date.accessioned2019-05-16T20:52:18Z
dc.date.available2019-05-16T20:52:18Z
dc.date.created2017-12
dc.date.issued2017-09-26
dc.date.submittedDecember 2017
dc.date.updated2019-05-16T20:52:19Z
dc.description.abstractThe ever-increasing importance in mobile and wearable technology for monitoring, sensing, and processing information demands the development of sophisticated architectures of multifunctional materials. Highly aligned multifunctional carbon nanotube (CNT) fibers combine the specific strength, lightness, and thermal conductivity of carbon fibers with the electrical conductivity of metals and ultrabroadband (ultraviolet to far-infrared) absorption. They are thus promising for flexible optoelectronics, astronomy, sensing, spectroscopy, imaging, defense, and communications applications. We fabricated unique optoelectronic devices based on these fibers for generating, detecting, and polarizing broadband electromagnetic waves. We explored the optoelectronic properties of highly aligned CNT fibers to fabricate photothermoelectric effect-based, polarization-sensitive, flexible, substrate-free, and room-temperature-operating photodetectors that work from the ultraviolet to the terahertz with low noise-equivalent power in the entire range using a novel fabrication technique. We incorporated this CNT-fiber photodetector into textiles by simply stitching it into cloth, crafting smart shirts that can collect sunlight as well as detect light on a mobile person. We will also demonstrate a simple and highly error-tolerant method for fabricating a freestanding terahertz polarizer with nearly ideal performance, reliant on the intrinsically one-dimensional character of conduction electrons in well-aligned CNTs. Finally, CNT fibers have the unique advantage of a high emissivity, nearly close to unity all over the electromagnetic spectrum, which makes them ideal as a source. We will describe a current-driven CNT-fiber-based ultrabroadband thermal light source that emits intense electromagnetic radiation from the visible to the far-infrared wavelength range. Compared to traditional thermal emitters, this emitter is more efficient, faster, more flexible, and more robust, making it a promising source for a variety of mid-infrared applications.
dc.format.mimetypeapplication/pdf
dc.identifier.citationZubair, Ahmed. "Generation, Detection, and Manipulation of Light with Ultrahigh-Conductivity Carbon-Nanotube Fibers." (2017) Diss., Rice University. <a href="https://hdl.handle.net/1911/105551">https://hdl.handle.net/1911/105551</a>.
dc.identifier.urihttps://hdl.handle.net/1911/105551
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectCarbon nanotube
dc.subjecttextile photodetector
dc.subjectterahertz polarizer
dc.subjectphotonics
dc.subjectflexible optoelectronics
dc.titleGeneration, Detection, and Manipulation of Light with Ultrahigh-Conductivity Carbon-Nanotube Fibers
dc.typeThesis
dc.type.materialText
thesis.degree.departmentElectrical and Computer Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ZUBAIR-DOCUMENT-2017.pdf
Size:
5.52 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
PROQUEST_LICENSE.txt
Size:
5.84 KB
Format:
Plain Text
Description:
Download
No Thumbnail Available
Name:
LICENSE.txt
Size:
2.61 KB
Format:
Plain Text
Description:
Download
Collections
Rice University Electronic Theses and Dissertations